Uplink data transmission method and apparatus

• US 10,420,131 B2
• Filed: 12/22/2017
• Issued: 09/17/2019
• Est. Priority Date: 06/25/2015
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Han, Wei, Liu, Yalin, Chen, Dageng
• Primary Examiner(s): Abelson, Ronald B
• Application Number:
  US15/852,395
• Publication Number:
  US 20180124816A1
• Time in Patent Office: 634 Days
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 1/1893 Physical mapping arrangements physical resource mapping in general H04L5/00
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: H04W 72/1268 of uplink data flows
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/53 based on regulatory allocation policies

Abstract

An uplink data transmission method and apparatus are described. The uplink data transmission method includes receiving a first message including transmission mode information. The transmission mode information indicates that a terminal device is capable of transmitting uplink data by using at least two contention transmission units (CTUs) that are in a same transmission time interval (TTI). The CTU refers to a transmission resource combining: a time, a frequency, and a code domain; a transmission resource combining a time, a frequency, and a pilot; or a transmission resource combining a time, a frequency, a code domain, and a pilot. The uplink data transmitted by using the at least two CTUs is partially the same or totally the same. The method further comprises the terminal device sending a second message including indication information, where the indication information is used to enable the terminal device to determine, according to the indication information, a CTU for uplink data transmission.

Claims

1. A method for performing, by a terminal device, an uplink data transmission within at least two contention transmission units (CTUs) of a same transmission time interval (TTI), the method comprising:

sending a first message to a network device, where the first message indicates a capability of the terminal device to transmit uplink data using multiple CTUs in a same TTI;

receiving a second message issued by the network device, wherein the second message comprises indication information enabling the terminal device to determine, according to the indication information, the at least two CTUs of the same TTI for the uplink data transmission; and

determining the at least two CTUs of the same TTI in response to the receiving the second message; and

transmitting, after the determining, an uplink data using the at least two CTUs,

wherein each of the at least two CTUs are a transmission resource defined by a combination of transmission resource defining values taken from the group of parameter combinations consisting of;

a time, a frequency, and a code domain,

a time, a frequency, and a pilot; and

a time, a frequency, a code domain, and a pilot; and

wherein the uplink data transmitted by using the at least two CTUs is;

partially same, in which case different data of the uplink data transmission by the terminal device is transmitted by each one of the multiple CTUs within the same TTI, or

totally same, in which case same data of the uplink data transmission by the terminal device is transmitted by each one of the multiple CTUs within the same TTI.

2. The method according to claim 1, wherein

the first message comprises a transmission mode information indicating that the terminal device is capable of transmitting uplink data using at least two CTUs within a same TTI.

3. The method according to claim 1, wherein the indication information comprises at least one type of information taken from the group consisting of:

information about a dedicated connection signature (DCS) of the terminal device;

information about a CTU;

information about a quantity of CTUs that can be used for the terminal device to transmit the uplink data;

information about a CTU access region;

information about a quantity of CTUs in a CTU access region;

information about a starting CTU in a CTU access region; and

information about a CTU-sequence-number mapping rule.

4. The method according to claim 3, wherein the CTU access region is a CTU access region used for redundant transmission.

5. The method according to claim 3, wherein the CTU access region comprises one or multiple CTU access regions, and wherein the multiple CTU access regions are CTU access regions belonging to a same TTI.

6. The method according to claim 5, wherein the multiple CTU access regions further comprise CTU access regions belonging to different TTIs.

7. The method according to claim 1, wherein the uplink data transmission comprises data to be retransmitted.

8. A network device, comprising:

a processor; and

a non-transitory computer-readable medium including computer-executable instructions that, when executed by the processor, facilitate carrying out a method for configuring a terminal device to perform an uplink data transmission within at least two contention transmission units (CTUs) of a same transmission time interval (TTI), the method comprising;

receiving a first message from the terminal device, where the first message indicates a capability of the terminal device to transmit uplink data using multiple CTUs in a same TTI;

sending a second message to the terminal device, wherein the second message comprises indication information enabling the terminal device to determine, according to the indication information, the at least two CTUs of the same TTI for the uplink data transmission;

wherein the second message is used by the terminal device to;

determine the at least two CTUs of the same TTI in response to the receiving the second message; and

transmit, after determining the at least two CTUs, an uplink data using the at least two CTUs,

wherein each of the at least two CTUs are a transmission resource defined by a combination of transmission resource defining values taken from the group of parameter combinations consisting of;

a time, a frequency, and a code domain,

a time, a frequency, and a pilot; and

a time, a frequency, a code domain, and a pilot; and

wherein the uplink data transmitted by using the at least two CTUs is;

partially same, in which case different data of the uplink data transmission by the terminal device is transmitted by each one of the multiple CTUs within the same TTI, or

totally same, in which case same data of the uplink data transmission by the terminal device is transmitted by each one of the multiple CTUs within the same TTI.

9. The network device according to claim 8, wherein

the first message comprises a transmission mode information indicating that the terminal device is capable of transmitting uplink data using at least two CTUs within a same TTI.

10. The network device according to claim 8, wherein the indication information comprises at least one type of information taken from the group consisting of:

information about a dedicated connection signature (DCS) of the terminal device;

information about a CTU;

information about a quantity of CTUs that can be used for the terminal device to transmit the uplink data;

information about a CTU access region;

information about a quantity of CTUs in a CTU access region;

information about a starting CTU in a CTU access region; and

information about a CTU-sequence-number mapping rule.

11. The network device according to claim 10, wherein the CTU access region is a CTU access region used for redundant transmission.

12. The network device according to claim 10, wherein the CTU access region comprises one or multiple CTU access regions, and wherein the multiple CTU access regions are CTU access regions belonging to a same TTI.

13. A terminal device, comprising:

a processor; and

a non-transitory computer-readable medium including computer-executable instructions that, when executed by the processor, facilitate carrying out a method for performing, by the terminal device, an uplink data transmission within at least two contention transmission units (CTUs) of a same transmission time interval (TTI), the method comprising;

sending a first message to a network device, where the first message indicates a capability of the terminal device to transmit uplink data using multiple CTUs in a same TTI;

receiving a second message issued by the network device, wherein the second message comprises indication information enabling the terminal device to determine, according to the indication information, the at least two CTUs of the same TTI for the uplink data transmission; and

determining the at least two CTUs of the same TTI in response to the receiving the second message; and

transmitting, after the determining, an uplink data using the at least two CTUs,

wherein each of the at least two CTUs are a transmission resource defined by a combination of transmission resource defining values taken from the group of parameter combinations consisting of;

a time, a frequency, and a code domain,

a time, a frequency, and a pilot; and

a time, a frequency, a code domain, and a pilot; and

wherein the uplink data transmitted by using the at least two CTUs is;

partially same, in which case different data of the uplink data transmission by the terminal device is transmitted by each one of the multiple CTUs within the same TTI, or

totally same, in which case same data of the uplink data transmission by the terminal device is transmitted by each one of the multiple CTUs within the same TTI.

14. The terminal device according to claim 13, wherein

the first message comprises a transmission mode information indicating that the terminal device is capable of transmitting uplink data using at least two CTUs within a same TTI.

15. The terminal device according to claim 13, wherein the indication information comprises at least one type of information taken from the group consisting of:

information about a dedicated connection signature (DCS) of the apparatus;

information about a CTU;

information about a quantity of CTUs that can be used for the apparatus to transmit the uplink data;

information about a CTU access region;

information about a quantity of CTUs in a CTU access region;

information about a starting CTU in a CTU access region;

or

information about a CTU-sequence-number mapping rule.

16. The terminal device according to claim 15, wherein the CTU access region is a CTU access region used for redundant transmission.

17. The terminal device according to claim 15, wherein the CTU access region comprises one or multiple CTU access regions, wherein the multiple CTU access regions are CTU access regions belonging to a same TTI.

18. The terminal device according to claim 17, wherein the multiple CTU access regions further comprise CTU access regions belonging to different TTIs.

19. The terminal device according to claim 13, wherein the uplink data transmission comprises data to be retransmitted.

20. The terminal device according to claim 13, wherein the uplink data transmission is a grant free transmission.